3506421634 has 4 divisors (see below), whose sum is σ = 5259632454. Its totient is φ = 1753210816.

The previous prime is 3506421631. The next prime is 3506421637. The reversal of 3506421634 is 4361246053.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (3506421631) and next prime (3506421637).

It can be written as a sum of positive squares in only one way, i.e., 3276990025 + 229431609 = 57245^2 + 15147^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3506421634.

It is not an unprimeable number, because it can be changed into a prime (3506421631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 876605407 + ... + 876605410.

Almost surely, 2^3506421634 is an apocalyptic number.

3506421634 is a deficient number, since it is larger than the sum of its proper divisors (1753210820).

3506421634 is a wasteful number, since it uses less digits than its factorization.

3506421634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1753210819.

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 3506421634 is about 59215.0456725316. The cubic root of 3506421634 is about 1519.2224835245. Note that the first 3 decimals are identical.

Adding to 3506421634 its reverse (4361246053), we get a palindrome (7867667687).

The spelling of 3506421634 in words is "three billion, five hundred six million, four hundred twenty-one thousand, six hundred thirty-four".